For the first time on audio, this is an unabridged reading of a classic "Doctor Who" novelisation, based on a serial from the original TV series. Why do so many spaceships crashland on Karn, a bleak, lonely and seemingly deserted planet? Are they doomed by the mysterious powers of the strange, black-robed Sisterhood, jealously guarding their secret of eternal life? Or does the mad Dr Solon, for some evil purpose of his own, need the bodies of the victims - and more especially, the body of Doctor Who...? It is read by the fourth Doctor, Tom Baker.